Ndeapi Masisitimu Makuru mune Turn-Key Galvanizing Plant?

A turn-kiyi galvanizing chirimwa chinoshanda nematatu makuru masisitimu. Aya masisitimu anoshanda kuitira kugadzira, kupfekedza, uye kupedza simbi. Iyo nzira inoshandisa maturusi akasarudzika sengeStructural Component Galvanizing EquipmentuyeZvikamu Zvidiki Mitsara Inogarisa (Robort). Iyo inopisa-yakanyudzwa galvanizing musika inoratidza yakakura kukura kugona.

Key Takeaways

• Chirimwa chinopfungaira chine masisitimu matatu makuru: pre-treatment, galvanizing, uye post-kurapa. Aya masisitimu anoshanda pamwechete kuchenesa, kupfekedza, uye kupedza simbi.
• Iyo isati yatanga kurapwa inochenesa simbi. Inobvisa tsvina, girizi, uye ngura. Iyi nhanho inobatsira zinc kunamatira zvakanaka kune simbi.
• Thegalvanizing systemanoisa zinc coating pasimbi. Iyo mushure mekurapa system inotonhorera simbi uye inowedzera yekupedzisira yekudzivirira. Izvi zvinoita kuti simbi yakasimba uye igare yakasimba.

System 1: Iyo Pre-Kurapwa System

Iyo Pre-Kurapwa System ndiyo yekutanga uye yakanyanya kuoma nhanho mugalvanizing process. Basa rayo guru nderokugadzirira simbi yakachena zvakakwana. Nzvimbo yakachena inobvumira zinc kuumba chisungo chakasimba, chakafanana nesimbi. Iyi sisitimu inoshandisa nhevedzano yemakemikari dips kubvisa zvese zvinosvibisa.

Degreasing Matangi

Degreasing ndiyo danho rekutanga rekuchenesa. Masimbi esimbi anosvika pachirimwa chine tsvina dzepamusoro semafuta, tsvina, uye girizi. Degreasing tanks anobvisa zvinhu izvi. Matangi ane mishonga inogadzirisa inopwanya tsvina. Sarudzo dzakajairika dzinosanganisira:

• Alkaline degreasing solutions
• Acdic degreasing solutions
• High-tembiricha alkaline degreasers

MuNorth America, ma galvanizers akawanda anoshandisa inopisa sodium hydroxide solutions. Vashandi vanowanzopisa aya matangi ealkaline kusvika pakati pe80-85 ° C (176-185 ° F). Iyi tembiricha inovandudza kushanda kwekuchenesa pasina mari yakawanda yesimba yekubikisa mvura.

Rinsing Matangi

Mushure mekurapa kwekemikari yega yega, simbi inoenda kune tangi yekusuka. Kusuka kunosuka chero makemikari asara kubva mutangi rapfuura. Iyi nhanho inodzivirira kusvibiswa kwekugeza kunotevera mukutevedzana. Kusuka kwakakodzera kwakakosha pakupedzisa kwemhando.

Industry Standard:Zvinoenderana neSSPC-SP 8 Pickling Standard, mvura yekugezesa inofanirwa kuve yakachena. Huwandu hweasidhi kana munyu wakanyungudutswa unotakurwa mumatangi ekusuka haufanire kudarika magiramu maviri parita.

Acid Pickling Matangi

Zvadaro, simbi inopinda muasidhi pickling tank. Iyi tangi ine diluted acid solution, kazhinji hydrochloric acid. Basa reasidhi nderekubvisa ngura uye mill scale, ayo ari iron oxides pamusoro pesimbi. Iyo yekunhonga inoburitsa pachena, simbi yakachena pasi, ichigadzira kugadzirira danho rekupedzisira rekugadzirira.

Fluxing Matangi

Fluxing inhanho yekupedzisira mu pre-kurapa. Simbi yakachena inonyura mu aflux tankine zinc ammonium chloride solution. Iyi sarudzo inoshandisa inodzivirira crystalline layer kune simbi. Iyi denderedzwa inoita zvinhu zviviri: inoita yekupedzisira micro-kuchenesa uye inodzivirira simbi kubva kuokisijeni mumhepo. Iyi firimu inodzivirira inodzivirira ngura itsva kubva pakuumba simbi isati yapinda mu kettle inopisa zinc.

Sisitimu 2: Iyo Galvanizing System

Mushure mekutanga kurapwa, simbi inoenda kune Galvanizing System. Chinangwa cheSistimu iyi ndechekushandisa iyokudzivirira zinc coating. Iyo ine zvikamu zvitatu zvikuru: hovhoni yekuomesa, choto chinopfuta, uye zinc kettle. Izvi zvikamu zvinoshanda pamwechete kugadzira chisungo chesimbi pakati pesimbi uye zinc.

Kuomesa Ovheni

Ovheni yekuomesa ndiyo yekutanga kumira muhurongwa uhu. Basa rayo guru nderokuomesa zvachose simbi mushure mechikamu chekuyerera. Vashandi vanowanzopisa ovheni kusvika ku200 ° C (392 ° F). Iyi tembiricha yepamusoro inoputisa hunyoro hwese hwasara. Kunyatsoomesa maitiro kwakakosha nekuti inodzivirira kuputika kweutsi muzinc inopisa uye inodzivirira kukanganisa kwekuputira semapini.

Mahovhoni ekuomesa emazuva ano anosanganisira magadzirirwo ekuchengetedza simba. Aya maitiro anoderedza kushandiswa kwemafuta uye anovandudza kushanda kwechirimwa.

• Vanogona kushandisa gasi rekupedza kubva muchoto kuenda kumberi-kupisa simbi.
• Vanowanzobatanidza maitiro ekugadzirisa kupisa.
• Ivo vanovimbisa optimized uye yunifomu kupisa kugovera.

Garavanizing Furnace

Choto chinopfuta chinopa kupisa kwakanyanya kunodiwa kunyungudutsa zinc. Aya mayunitsi ane simba anokomberedza zinc kettle uye anochengetedza zinc yakanyunguduka patembiricha chaiyo. Mafurnace anoshandisa akati wandei epamusoro ekudziya tekinoroji kuti ashande nemazvo. Mhando dzakajairika dzinosanganisira:

• Pulse Yakadzingwa High-Velocity Burners
• Zvisina Kunanga Heating furnaces
• Mavhiri eMagetsi

Chengetedzo Kutanga: Mafuru anoshanda pakupisa kwakanyanya, zvichiita kuti kuchengeteka kuve kwakakosha. Iwo akavakwa ane high-temperature insulation, digital sensors yekutarisa kettle tembiricha, uye magadzirirwo anobvumira kuongororwa kuri nyore kwezvinopisa uye mavharuvhu ekudzora.

Zinc Kettle

Zinc kettle ndiro hombe, rectangular gaba rinobata zinc yakanyungudutswa. Iyo inogara yakananga mukati mevira remoto, iyo inopisa iyo. Iyo kettle inofanirwa kusimba zvisingaite kuti irambe ichipisa tembiricha uye nekuora kwemvura zinc. Nechikonzero ichi, vagadziri vanogadzira kettle kubva kune yakakosha, yakaderera-kabhoni, yakaderera-silicon simbi. Vamwe vanogonawo kuve nemukati wemukati wezvidhinha zverefractory yekuwedzera hupenyu hurefu.

Sisitimu 3: Iyo Post-Kurapwa System

Iyo Post-Kurapwa System ndiyo yekupedzisira nhanho mugalvanizing process. Chinangwa chayo ndechekutonhodza simbi ichangobva kuvharwa uye kuisa chidziviriro chekupedzisira. Iyi sisitimu inovimbisa kuti chigadzirwa chine chitarisiko chinodiwa uye kusimba kwenguva refu. Izvo zvakakosha zvinodzima matangi uye passivation zviteshi.

Kudzima Matangi

Mushure mekusiya zinc kettle, simbi ichiri kupisa zvakanyanya, inosvika 450°C (840°F). Matangi ekudzima anokurumidza kutonhodza simbi. Uku kutonhora kwekukurumidza kunomisa kuita kwesimbi pakati pe zinc ne iron. Kana simbi ikatonhora zvishoma nezvishoma mumhepo, kuita uku kunogona kuenderera mberi, kuchikonzera kupera kwakashata, kwemavara. Kudzima kunobatsira kuchengetedza kupenya, kutaridzika kwakafanana. Nekudaro, mamwe magadzirirwo esimbi haana kukodzera kudzima nekuti kukurumidza kushanduka kwetembiricha kunogona kukonzera warping.

Vashandi vanoshandisa zvinwiwa zvakasiyana, kana masvikiro, kudzima zvichienderana nemhedzisiro yaunoda:

• Mvura:Inopa kukurumidza kutonhora asi inogona kugadzira inobvisika zinc munyu pamusoro.
• Mafuta:Kutonhodza simbi zvishoma kudarika mvura, izvo zvinoderedza njodzi yekutsemuka paunenge uchivandudza ductility.
• Munyu wakanyungudutswa:Ipa zvishoma zvishoma, zvinodzorwa zvakanyanya kutonhora, kuderedza kukanganisa.

Passivation uye Kupedzisa

Passivation ndiyo yekupedzisira kurapwa kwemakemikari. Iyi nzira inoshandisa yakaonda, isingaonekwi denga kune rakagadzirwa nemarara. Iyi nhanho inodzivirira iyo nyowani zinc coating kubva kumberi oxidation uye kuumbwa kwe "white rust" panguva yekuchengetedza uye kutakura.

Chengetedzo uye Yezvakatipoteredza Cherechedzo:Nhoroondo, passivation yaiwanzo shandisa vamiririri vane hexavalent chromium (Cr6). Zvisinei, kemikari iyi ine chepfu uye carcinogenic. Masangano ehurumende akaita seUS Occupational Safety and Health Administration (OSHA) anonyatso gadzirisa kushandiswa kwayo. Nekuda kwehutano uye kunetsa kwezvakatipoteredza, iyo indasitiri ikozvino inoshandisa zvakanyanya dzimwe nzira dzakachengeteka, senge trivalent chromium (Cr3+) uye chromium-isina passivators.

Iyi nhanho yekupedzisira inovimbisa iyogalvanized productinosvika kwairi kuenda yakachena, yakachengetedzwa, uye yagadzirira kushandiswa.

Essential Plant-Wide Support Systems

Iwo matatu masisitimu makuru muchirimwa chinopfuta anotsamira pane akakosha masisitimu ekutsigira kuti ashande zvakachengeteka uye nemazvo. Aya masisitimu ezvekudyara-sese anobata kufamba kwezvinhu, akasarudzika ekubatisa mabasa, uye kuchengetedza kwezvakatipoteredza. Vanobatanidza maitiro ose kubva pakutanga kusvika pakupedzisira.

Material Handling System

Iyo yekubata sisitimu inofambisa inorema simbi machira munzvimbo yese. Zvidyarwa zvemazuva ano zvinogarisa zvinoda ma cranes egiredhi epamusoro uye zvimwe zvekushandisa kubata mafambiro ebasa. Iyi midziyo inofanirwa kubata huremu hwezvinhu uye kutsungirira kupisa kwakanyanya uye kuratidzwa kwemakemikari.

• Cranes
• Hoists
• Conveyors
• Vanosimudza

Vashandi vanofanira kufunga nezvehuwandu hwekutakura kwechigadzirwa ichi. Zvekugadzira zvinorema zvakanyanya, yakanakisa tsika kubvunza iyo galvanizer kuona kuti system yavo inokwanisa kubata huremu. Kuronga uku kunodzivirira kunonoka uye kunovimbisa kubata kwakachengeteka.

Structural Component Galvanizing Equipment

Zvirimwa zvinoshandisaStructural Component Galvanizing Equipmentkuti uwane yunifomu zinc coating pazvinhu zvakakura kana zvakaoma. Kunyura kwakajairwa kunogona kunge kusakwana kune zvimedu zvine maumbirwo asina kujairika kana mukati. Iyi midziyo yakasarudzika inoshandisa hunyanzvi hwepamberi, senge inodzorwa chikamu chekufamba kana otomatiki masisitimu ekupfapfaidza, kuve nechokwadi chekuti zinc yakanyungudutswa inosvika pese pese zvakaenzana. Kushandisa iyo chaiyo Structural Component Galvanizing Equipment kwakakosha pakuzadzisa zviyero zvemhando yezvinhu zvakaita sematanda makuru kana magungano akaomarara. Kushandiswa kwakakodzera kweStructural Component Galvanizing Equipment inovimbisa kupera kunoenderana uye kunodzivirira.

Kubvisa Utsi uye Kurapa

Iyo galvanizing process inogadzira utsi, kunyanya kubva kune acid pickling matangi uyeinopisa zinc kettle. Kubvisa utsi uye nzira yekurapa yakakosha pakuchengetedza kwevashandi uye kuchengetedza kwezvakatipoteredza. Iyi sisitimu inobata mhute inokuvadza panzvimbo yadzo, inosuka mhepo kuburikidza nekukwesha kana mafirita, yobva yaiburitsa zvakachengeteka.

Chengetedzo & Zvakatipoteredza:Inoshanda kuburitsa utsi inodzivirira vashandi kubva mukufemesa makemikari mhute uye inodzivirira kuburitswa kwezvinosvibisa mumhepo, kuve nechokwadi kuti chirimwa ichi chinoenderana nemirairo yezvakatipoteredza.

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A turn-kiyi galvanizing chirimwa chinobatanidza matatu epakati masisitimu. Pre-kurapa inochenesa simbi ye zinc adhesion. Iyo galvanizing system inoshandisa kuvhara, uye mushure mekurapa kunopedza chigadzirwa. Tsigiro masisitimu, anosanganisira Structural Component Galvanizing Equipment, inobatanidza maitiro ese. Zvidyarwa zvemazuva ano zvinoshandisa otomatiki uye akakosha maratidziro ekuita kuti avandudze kushanda nesimba uye kusimba.